Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (0 bytes)

Title: Golden trout habitat selection and movement patterns in degraded and recovering sites within the Golden Trout Wilderness, California

Author: Matthews, K.R.;

Date: 1996

Source: North American Journal of Fisheries Management 16:578-590

Publication Series: Miscellaneous Publication

Description: Abstract.—I used radio transmitters to determine habitat selection and movement patterns of California golden trout Oncorhynchus mykiss aguabonita in two areas defined by their different levels of habitat recovery in the Golden Trout Wilderness, California. Study areas were differentiated by the amount of streamside vegetation (low or high coverage of beaked sedge Carex rostrata). Lower amounts of streamside vegetation were typically associated with other signs of degradation caused by cattle, including widened streams, collapsed banks, and reduced bank undercutting. Twenty-nine California golden trout were monitored from 6 July to 14 July 1994 over 192 diel-tracking hours at six study sections in low- and high-sedge areas in Mulkey Meadow. In both low- and high-sedge areas, California golden trout were observed using nine habitat features (undercut bank, willows, collapsed bank, open channel, aquatic vegetation, sedge, boulder, grass, and detrital mats), but they more often selected undercut banks, aquatic vegetation, and sedge and avoided bare and collapsed banks. Home ranges were similar in high-sedge sections (17.3 m) and low-sedge sections (16.9 m). Most fish moved little and were found within 5 m of their previously recorded location at both low-sedge and high-sedge sites. Total movement over the tracking period was variable between individual fish, but mean cumulative distances differed and were greater in high-sedge areas than in low-sedge areas. This study documented that California golden trout in pools and runs used and selected habitat features typically damaged by grazing (undercut banks, aquatic vegetation, and sedge) and avoided habitat features (bare and collapsed banks) typically caused by cattle grazing. Grazing management that seeks to protect habitat features preferred by California golden trout must employ strategies that protect undercut banks, sedge, and aquatic vegetation, and that reduce bare and collapsed banks.

Keywords: Golden trout

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Matthews, K.R. 1996. Golden trout habitat selection and movement patterns in degraded and recovering sites within the Golden Trout Wilderness, California. North American Journal of Fisheries Management 16:578-590

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.